The heavy-element abundances of AGB stars and the angular momentum conservation model of wind accretion for barium stars

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dc.creatorLiang, Y. C.
dc.creatorZhao, G.
dc.creatorZhang, B.
dc.date2000-11-06
dc.date.accessioned2026-07-07T01:56:26Z
dc.date.available2026-07-07T01:56:26Z
dc.descriptionAdpoting new s-process nucleosynthesis scenario and branch s-process path, we calculate the heavy-element abundances and C/O ratio of solar metallicity 3M_sun TP-AGB stars. The evolutionary sequence from M to S to C stars of AGB stars is explained naturally by the calculated results. Then combining the angular momentum conservation model of wind accretion with the heavy-element abundances on the surface of TP-AGB stars, we calculate the heavy-element overabundances of barium stars via successive pulsed accreting and mixing. Our results support that the barium stars with longer orbital period, P>1600 days, form through wind accretion scenario.
dc.description14 pages, LaTex, 17 PS figures included, accepted for publication in A & A
dc.identifierhttps://arxiv.org/abs/astro-ph/0011118
dc.identifierhttp://arxiv.org/abs/astro-ph/0011118
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1996
dc.subjectAstrophysics
dc.titleThe heavy-element abundances of AGB stars and the angular momentum conservation model of wind accretion for barium stars
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